複数の潜在的トランスメブランドメインを持つタンパク質をコードする新しい細胞腫瘍遺伝子の分離と特徴付け
Cell
|June 6, 1986
まとめ
研究者は,腫瘍発生性アッセイを通じて,masと名付けられた新しいヒト腫瘍遺伝子を特定しました. 独特のタンパク質構造は,がんの発症に関与する新種の腫瘍遺伝子を示唆している.
科学分野:
- 分子生物学は分子生物学である.
- 腫瘍学 腫瘍学
- 遺伝学 遺伝学とは
背景:
- 腫瘍遺伝子は,がんの重要な原動力である.
- 新しい腫瘍遺伝子を特定することは,腫瘍発生を理解するのに役立ちます.
- マス腫瘍遺伝子は以前は特徴づけられていなかった.
研究 の 目的:
- ヒトの新型腫瘍遺伝子をクローンし,配列化する.
- マス・オンコゲンの機能的性質とタンパク質構造を特徴付ける.
- 腫瘍遺伝子の新種としての潜在的役割を探求する.
主な方法:
- 裸のマウスの共感染と腫瘍発生性測定.
- クローンされた腫瘍遺伝子のDNAシーケンシング.
- 推測されたタンパク質配列のバイオ情報分析.
主要な成果:
- 新しいヒト腫瘍遺伝子のmasがクローンされ,順番が決定されました.
- マス・オンコゲンはNIH 3T3細胞において,焦点誘発活性が弱かった.
- 5'非コーディング配列のDNA再配列が,おそらくmas遺伝子を活性化させた.
- マスタンパク質 (325アミノ酸) は7つのトランスメブランドメインで高度に水嫌性があります.
結論:
- マス・オンコゲンは,ヒトがん研究における新しい発見を表しています.
- マスタンパク質のユニークな構造は,腫瘍遺伝子の新しい機能的クラスを示唆しています.
- マス腫瘍遺伝子の機能に関するさらなる調査は,治療戦略のために正当化されています.
関連する概念動画
Single-pass Transmembrane Proteins
Integral membrane proteins are tightly associated with the cell membrane and play a crucial role in cell communication, signaling, adhesion, and transport of the molecules. Some integral membrane proteins are present only in the membrane monolayer. For example, the enzyme fatty acid amide hydrolase is present in the cytoplasmic side of the membrane monolayer. In contrast, another type of integral membrane protein, also known as a transmembrane protein, spans across the membrane. Transmembrane...
Cancer-Critical Genes I: Proto-oncogenes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
The Ras Gene
The Ras-gene-encoded proteins are regulators of signaling pathways controlling cell proliferation, differentiation, or cell survival. The Ras-gene family in humans constitutes three primary members—the HRas, NRas, and KRas. These genes code for four functionally distinct yet closely related proteins—the HRas, NRas, KRas4A, and KRas4B. The involvement of mutant Ras genes in human cancer was first discovered in 1982 and is among the most common causes of human tumorigenesis.
Ras is a superfamily...
Ras is a superfamily...
Insertion of Single-pass Transmembrane Proteins in the RER
Integral membrane proteins are proteins adhered to the lipid bilayer of a cell organelle or membrane. They can be of two types: transmembrane integral proteins that span the lipid bilayer and monotopic proteins that are attached to either side of the membrane but do not pass through it.
Integral transmembrane proteins possess transmembrane and extra membrane domains. The transmembrane domains are primarily made of 20-25 hydrophobic amino acids arranged in a helical secondary confirmation. These...
Integral transmembrane proteins possess transmembrane and extra membrane domains. The transmembrane domains are primarily made of 20-25 hydrophobic amino acids arranged in a helical secondary confirmation. These...
Insertion of Multi-pass Transmembrane Proteins in the RER
The rough ER membrane synthesizes, assembles, and embeds transmembrane proteins in diverse topologies. These proteins function as transporters or channels and can remain in the ER membrane or are sent to the Golgi complex, lysosome, and cell membrane.
The multipass transmembrane proteins are the type IV integral membrane proteins with multiple topogenic sequences determining their spatial arrangement in the ER membrane. Nearly all multipass proteins lack a cleavable signal sequence and use...
The multipass transmembrane proteins are the type IV integral membrane proteins with multiple topogenic sequences determining their spatial arrangement in the ER membrane. Nearly all multipass proteins lack a cleavable signal sequence and use...
Cancer-Critical Genes I: Proto-oncogenes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...


